i have a 2002 7.3l f350 superduty. Going to be getting another set of mud grapplers for it. Im going with the 37's this time and they are 13.50" wide. I had a set of 12.50" wide mud grapplers on my old truck ( 2000 f250 ). Those tires rubbed the leaf springs on a HARD right or left turn only. Im trying to find someone that already has the 37's on theirs and let me know what backspacing they have on their wheels to prevent or at least minimize the rubbing on the front leafs. Any help would be appreciated. Thanks.